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Sapphire month8/31/2023 Gemstones are rated on their ability to withstand scratching based on a system called the Mohs Scale of Hardness, and sapphires score a 9 out of 10. Sapphires are among the most durable naturally occurring elements in the world. To help celebrate this gem is the Logan Sapphire, pictured It is a flawless specimen from Sri Lanka, a cushion-cut stone which possesses a rich deep blue color and is the second largest (blue) sapphire known, weighing 422.99 carats. Chromium impurities in corundum yield a red tint, and the resultant gemstone is called a Ruby, Sapphire’s sister stone. This can give corundum blue, yellow, pink, purple, orange or greenish colour. It comes in other colours depending on the amounts of other trace elements such as iron, titanium, chromium, copper or magnesium. Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (α- Al2 O3). The 65 th Anniversary is also known as the sapphire jubilee.Ī blue sapphire corundum crystal. Photo credit Géry Parent Blue Sapphire is the Birthstone for Septemberīlue Sapphire is also used as gifts to celebrate the 45 th and 65 th Anniversaries.
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